Rain Sounds & Ambient Mixer
Build your own relaxing soundscape: gentle rain on the window, a distant thunderstorm, a crackling fire, waves on the beach or a morning forest. Every sound is generated live in your browser, so it never repeats.
How to use the Rain Sounds & Ambient Mixer
- Pick a scene like Thunderstorm or Cozy cabin. It starts playing right away.
- Switch sounds on or off by clicking their names, and move each slider to set its volume.
- Set the master volume so the ambience sits comfortably in the background.
- Choose a timer if you want the sound to fade out and stop by itself, for example after 45 minutes.
- Press Stop whenever you want silence again.
How each sound is synthesized
| Layer | Recipe |
|---|---|
| Rain | Pink noise between 450 Hz and 7 kHz, plus about 22 random drops per second: tiny 4–14 ms noise bursts at random pitches between 1.8 and 7.5 kHz, spread left, center and right. |
| Heavy rain | Low-passed brown noise for the roar of a downpour, mixed with band-passed white noise for the hiss, slowly swelling in intensity. |
| Thunder | Brown noise bursts with a slow attack and a 4–8 s decay, low-pass filtered from about 1 kHz down to under 160 Hz, sometimes with a sharp crack. A new roll comes every 10–40 seconds. |
| Wind | Pink noise through a resonant band-pass filter whose frequency and volume drift with slow oscillators (0.07–0.19 Hz), like gusts. |
| Fire | A low brown-noise roar with about 7 random crackles per second and the occasional bigger pop. |
| Ocean waves | Brown noise whose volume and brightness rise and fall every 10 seconds, with a touch of high hiss for the foam. |
| Stream | White noise through three narrow filters that jump to new pitches about 12 times a second, creating the babble of water over stones. |
| Crickets | Two insects at about 4.5 and 4.75 kHz, each chirping in groups of three short pulses, one on the left and one on the right. |
| Birds | Random phrases of 2–6 rising whistles between about 2 and 6 kHz every few seconds, placed at random positions in the stereo field. |
Why ambient sound helps
Steady ambient sound raises the background level of a room, so sudden noises such as traffic, a slamming door or a neighbor's TV stand out less and are less likely to wake you or break your concentration. Natural sounds like rain and waves are broadband (they cover many frequencies) and change slowly, which many people find more pleasant than plain white noise. For focus, a moderate level of around 50–60 dB, about as loud as quiet conversation, works well for most people.
Scene ideas
- Reading nook: rain 60%, fire 50%, wind 15%.
- Summer night: crickets 50%, stream 30%, wind 15%.
- Tropical storm: heavy rain 70%, thunder 60%, waves 40%, wind 40%.
- Deep focus: heavy rain 45% on its own, master volume around 40%.
Frequently asked questions
Are these real rain recordings?
No. Every sound is synthesized in real time by your browser from filtered noise, oscillators and random events: individual raindrops, thunder rolls, fire crackles and bird songs are all generated on the fly. That means the page loads instantly, uses no data and the ambience never repeats exactly.
Which sounds help with sleep?
Steady, broadband sounds such as gentle rain, heavy rain and ocean waves mask sudden noises well. Many people prefer to avoid thunder and birds for sleep because they are less predictable. Try the Gentle rain or Cozy cabin scene with a timer.
How does the timer work?
Choose a duration before or while playing. A countdown appears in the scene, the volume fades out smoothly during the last minute (if the fade option is ticked) and then all sounds stop.
Can I mix my own combination?
Yes. Click any sound to switch it on and set its own volume with the slider; all nine layers can play together. Your combination is saved in this browser, so it's ready the next time you visit.
Does it keep playing in the background?
On computers it keeps playing when you switch tabs or windows. Some phone browsers pause web audio when the screen locks; keep the page open and let the screen dim rather than locking it.
Why don't I hear anything?
Browsers only allow audio after a click on the page, so press Play or a scene first. Also check your device volume and make sure at least one layer is switched on with its slider above zero.